Lamp.



Patented Dec. I7, I90I.

H0. B89,II3.

A. L. DLSN.

L A M P.

(Application led Jan. 25, 1901.)

(No Model.)

W/ T/VE SSE S A TTOHNEYS m: Noms uns ce, PHoTovLxmo., WASHINGTON. n. r.

UNirnn brains aimer lirica.

AXEL LUDVIG OLSCN, OF ESSEX, CONNECTICUT.

LAMP.

SPECIFICATION forming part of Letters Patent N o. 689,113, dated December 17, 190'1.

l Application led January 251 1901. Serial No. 44,701. (No model.)

T0 a/ZZ whom, it may concern:

Be it known that I, AXEL LUDvIG OLSON, a citizen of the United States, and a resident of Essex, in the county of Middlesex and State of Connecticut, have invented a new and Improved Lamp, of which the following is a full, clear, and exact description.

This invention relates to a lamp the i'lame of which is supplied by a gas generated from a hydrocarbon oil, preferably gasolene, by means of heat derived from the burner or burners of the lamp. To this end l employ a gasolene -reservoir with a peculiarly Rarranged siphon-tube, serving uniformly to deliver the gasolene to a retort having bafflecups, serving to atomize the oil, and in which retort the gasolene is vaporized by the heat from a tube passing through the retort, such tube conducting the hot gas from the lampburner. From the retort the gas is led to the burner of the lamp and there consumed.

This specification is a specific description of one form of the invention, while the claims are definitions of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of'this specification, in which similar characters of reference indicate correspodinng parts in all the views.

Figure l vis a vertical section of the invention. Fig. 2 is an enlarged vertical section showing the upper portion of the retort and a slightly-modified construction of the devices in the vicinity thereof. Fig. 3 is a plan view of the upper end of the hot air or gas tube which passes through the retort. Fig. 4 is a detail view of the flame-expander of the burner, and Fig. 5 is a side elevation of the drip-cup which is attached to the lower end of the air-tube.

Referring to Fig. l, ce indicates the retort, which is in the form of a vertically-disposed tube having a cap c at its upper end. This cap has a nozzle c2 delivering the gasolene or other oil into the retort, and the upper por tion of this nozzle carries a pipe h', passing from the oil-reservoir ZJ and having a needlevalve b2 therein commanding the flow of oil from the reservoir. W'ithin the reservoir b is arranged a siphon b3, which communicates with the tube b', this siphon having its receiving end in the lower part of the oil-reservoir, so that the oil will be delivered to the tube h at a uniform pressure not affected by the volume of oil within the reservoir. A hanger or bail b4 is attached to the upper end of the nozzle 0.2, and by means of this hanger the whole apparatus may be supported, as Fig. l indicates. The lower portion of the retort c is enlarged, as indicated at a3, and from this enlarged portion of the retort CL pass pipes c4, commanded by valves c5 and leading, respectively, to the burners of the lamp; These burners'are here shown to be twoin number, one for each of the pipes a4, and the burners comprise tubes c, having gauze covers c at their upper ends. To these covers are attached by riveting or otherwise the tapered or conical iiame-expanders c2, which are situated centrally of the burners and serve to throw the flame outward against the incandescent mantles, one of which is indicated at cS in Fig. l. adapted to be held in the usual manner by rods c4, supported on the burners. Attached to each tube c is an annular holder d for the These mantles are chimneys d, and these chimneys may also be ,r

fitted with shades d2, as shown, all of which is of the usual construction. For the admission of atmospheric air into the chimneys d in the vicinity ot the burners I form the holders cl with orifices d3, as shown at the right-hand side of Fig. l.

Located over the chimneys d are concavoconvex collectors e, which are loosely mounted on the ends ot' tubes e. These collectors may be moved on the tubes to the position indicated at the right-hand side of Fig. 1, so as to facilitate the emplacement or displacement of the shades d2. The tubes e curve upwardly and inwardly and pass through the cap c of the retort c, where they are joined together and communicate with a tube e2, which passes down centrally through the enlarged lower end c3 ot' the retort, the tube e2 discharging at its lower end into a sort of drip-cup e3, attached to the tube by hooks e4, carried by the cup and engaged with pins eai on the lower end of the tube e2. This cup e3 does not obstruct the passage of air or gas through the lower end of the tube ed, but it will collect any liquid material which may fall from the tube. Attached to the tube e2 at points within the retort a are cups e6, which servo to baiiie the dow of the oil down IOO the retort, and in thus retarding the oil to accelerate the vaporization thereof.

In the operation of the device upon opening the valve b2 the oil will flow into the retort a, and being first vaporized therein by passing over the baffle-cups the vapor may then be burned at the burner c, and the hot gases passing out at the chimney d will be held by the collector e and forced to pass through the tubes e and down through the tube e2, thus heating the retort a and insuring the complete vaporization of the oil. Air is mixed with the gas in the retort, the air {iowing through openin gs a6 in the retort a. These openings are arranged in the upper portion thereof and maybe regulated in point of size by an annulus a7 adjustably fitted on the eX- terior of the retort. The gas generated in the retort may pass by the limbs a4 thereof to the burners, and the burners are thereby supplied. It will be observed that by this arrangement the gas is consumed as fast as it is generated and that it is not stored under pressure in any ypart of the apparatus. The heat of the burner is utilized to gasify the oil, and there is no danger of explosion of any of the parts, since the llame of theburner is entirely removed from the retort ct and reservoir b.

Figs. 2 and 3, illustrating a slight modification of the structure at the upper end of the retort, show a cap f, which is similar to the cap ct before described. This cap has the tubes c entered thereinto and passed into a cap f', which is adapted to t'over the upper end of the tube e2. The upper end of the capf has a boss f2 attached rigidly thereto, and this boss carries a nozzle f3, similar to the nozzle a2. The boss f2 also has thelower portions of the limbs of the bail or hanger b4 attached thereto by which to support the lamp, such attachment being elected through the medium of set-screws f4, as shown.

I Iaving thus described my invention, I claim as new and desire to secure by Letters Patentl. A lamp, comprising a vertically-disposed tubular retort, a tube concentric to said retort for the purpose of heating the same, and spaced bafe-cups located outside at the side of the retort, tubes passing from the lower end of the retort to the burners, and tubes arranged over the burners to carry off the heated products of combustion therefrom, said tubes passing through the cap at the upper end of the retort and downward out of the lower end thereof, for thepurpose specified.

4. A lamp, comprising a central tube provided with Ameans for passingy hot gases through the same and also provided upon its exterior with annular baffle-cups, an outer tube concentric with said central tube and provided with air-inducts, means for supplying hydrocarbon liquid to said central tube and said ba'flie-cups, and a burner connected with said outer tube for consuming aerated hydrocarbon vapor.

5. A lamp, comprising a central tubel provided with bafJe-cups, a burner connected with said central tube to supply the same with hot gases, a plurality of annular bafflecups mounted upon said central tube and heated thereby, an outer tube concentric with said central tube and baffle-cups, and provided with air-inducts, a member connecting said outer tube with said burner for supplying the latter with combustible Vapor, and means for feeding hydrocarbon liquid to said central tube and said baffle-cups.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

AXEL LUDVIG OLSON.

Witnesses:

HENRY A. OLMsTED, RICHARD B. TILEY. 

